Mold for building-blocks.



No. 769,601. PATENTED SEPT. 6, 1904. J. A. FERGUSON.

MOLD FOR BUILDING BLOCKS.

APPLICATION rum) DEO.15, 1903.

N0 MODEL.

Patented September 6, 1904.

'UNTTED STATES PATENT OFFICE.

JOHN ALBERT FERGUSON, OF DENVER, COLORADO.

MOLD FOR BUILDING-BLOCKS.

SPECIFICATION forming part of Letters Patent No. 769,601, datedSeptember 6, 1904.

Application filed December 15, 1903. Serial No. 185.289. (N0 mOdEBl-l Toall w/tont it may OII/I'II'III Be it known that 1, JOHN ALBm-rr FERGU-sox, a citizen of the United States, residing at Denver, in the countyof Denver and State of Colorado, have invented certain new and usefulImprovements in Molds for Building- Blocks; and I do declare thefollowing to be a full, clear, and exact description of my in vention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,forming a part of this specification, in which similar letters ofreference indicate corresponding parts in both figures.

My invention relates to a class of molds adapted to be used for moldingbuilding-blocks for walls which are composed of cement or other suitablematerial.

The objects of my invention are to provide a mold that can beconstructed with any suitable core, thus changing the form of the moldedproduct, one that can be readily adjusted, and one that is simple in itsconstruction and durable. v

1 refer now to the drawings in further explaining the nature and objectsof my invention, in which- Figure 1 is a perspective view of my mold,showing the molded product released therefrom. Fig. 2 is a perspectiveview of the mold closed ready to receive the material.

In more fully referring to the drawings, A represents the bottom or baseplate of the mold-box. A and A represent the end walls thereof.

A and A represent the side walls, one of which is hinged to thebase-plate, (designated by A.) The side wall (designated by A") isprovided with recesses or indentations (designated by X) adapted toreceive the edges of the end walls A and A as fully illustrated in thedrawings. The side walls are provided with extensions or rods,(indicated by A", i. A and A.) These extensions or rods are adapted tofacilitate the handling of the mold.

A and A indicate rods or bolts by means of which the side Walls areclamped together, said bolts being pivoted to the stationary or fixedwall A and having their threaded end portions passing through slots oropenings formed in the wall A and engaging suitable clamping-nuts, sothat when said nuts are ad justed the several parts of the mold will bedrawn together in box form, as clearly illustrated in Fig. 2 of thedrawings.

\ The topor presser plate of the mold, which is ordinarily constructedwith a plane undersurface, is designated by B.

O indicates the core of the mold, which can be constructed of anysuitable metal or material, as 1 do not confine myself to any one metalnor to any particular mode of constructing the core, but desire tosecure by Letters Patent the principle involved and vary theconstruction according to the shape of the block that is desired and touse such material as will be found most practical and efficient for theuses and purposes for which it is adapted.

1) indicates the product of the mold or a cement block adapted to beused for constructing walls for buildings. 1 do not claim anything assubject-matter of this application relating to said block.

It is obvious that the operation of my mold is simple and as follows:The mold is filled with material of which the blocks are to be made andthe top or presser plate B placed thereon. It is then placed within apress suitable for the purpose and a heavy pressure brought to bear onthe top of said mold. After it has received the desired amount ofpressure it is removed from the press and the clamping-nuts on the rodsor bolts unscrewed, thereby releasing the hinged side wall A andpermitting the molded product to be readily removed from the box, asillustrated in Fig. 1 of the drawings.

Having thus described the nature and objects of my invention and themanner of constructing and applying the same, what I claim as new, anddesire to secure by Letters Patent of the United States, is-

1. A mold-box having three fixed walls and one hinged wall, and a coremember arranged within the box and engaging the base of the box and twoof the fixed walls thereof.

2. A mold-box comprising a base-plate having end walls rigidly securedthereto, a staside wall pivoted to one edge of the base-plate and afixed side wall secured to the opposite edge thereof, and clamping-rodspivoted to the fixed side wall and engaging the opposite movable Wall.

8. A mold-box comprising a base-plate having two end walls and one sidewall rigidly secured thereto, a movable side wall hinged to thebase-plate and provided with terminal slots or recesses, clamping-rodspivoted to the fixed side wall and engaging said slots 0r recesses, apresser-plate. and a core arranged Within the mold-box.

9. A mold-box comprising a base-plate havtionary side wall secured 'tothe end walls a I core member supported by the base-plate, and a movableside wall pivoted to said base-plate. l 3. A mold-box having three fixedwalls and j a movable side Wall, a core member supported by the base ofthe box and a presser-plate forming a cover for said box. I 4. Amold-box having a fixed side wall and l a movable side Wall, means forsecuring the l movable side wall to the end walls of the box l and acore member arranged within said box l and supported by the basethereof. I 5. A mold-box having a fixed side wall and l a movable sidewall, means for securing the l movable side wall to the end walls of thebox, a core member supported by the base of said box, and apresser-plate forming the top of l l tionary side wall, a movable sidewall provided with slots or recesses, threaded rods pivoted to thestationary side wall and passing through the slots in the oppositemovable Wall, and clamping-nuts engaging the threaded ends of said rods.

In testimony that I claim the foregoing as my own I hereunto subscribemy name in the presence of two Witnesses.

JOHN ALBERT FERGUSON. Witnesses:

HARMON H. RICE, ORA LASSWELL.

the box and serving as a support for the block when the same is removedfrom the mold.

6. A mold-box comprising a base-plate, two fixed end walls, one fixedside wall, and one movable side wall hinged to the base-plate, means forclamping the movable side wall to the end walls, a presser-plate, and acore member arranged within the box and secured to said base-plate.

7. Amold-box comprising a base-plate, stai tionary end walls securedthereto, a movable ing end walls rigidly secured thereto, a sta-

